Prediction Of Nitrates Lab Report

- Having more dissolved oxygen increases the number of fish observed in the body of water.

Even though, fertilizers are needed to supply essential nutrients to the growth of plants; an excess of them is one of the major issues contributing to pollution in the Chesapeake Bay Watershed. Fertilizers are mainly composed of two elements: nitrogen and phosphorus.(4) Throughout the years, millions of pounds of this nutrients are applied all around the Chesapeake Bay Watershed; everything not absorbed by the soil or taken up by plants eventually reaches the Chesapeake Bay through storm-water runoff. This nutrients end up creating algae blooms in the water, which reduce the amount of sunlight available to underwater grasses; not allowing plants to photosynthesize and produce the food they need to survive. Algae then decomposes creating dead zones killing fish and other species since oxygen is needed for any organism to live. (5)

Since the algae population decreases, so does the algae bloom, which sink to the bottom and decompose to create oxygen many underwater animals need. Some blooms also produce toxins, which can harm or kill the fish, harm animals that drink the water, and cause problems for humans as well. With a decrease in algae blooms, plants and animals would no longer have a steady population. They would end up

Algae blooms have been an issue in the Chesapeake Bay, especially in the Baltimore Inner Harbor. Algae is a natural and critical part of the ecosystem, however in large doses it is harmful to the plants and organisms within the ecosystem. Algae blooms can block out sunlight and kill other plants in the water. Algae depends on various factors such as water, nutrients and carbon dioxide to grow. Eutrophication of the Inner Harbor has lead to algae blooms that have caused large fish kills in the past. When there is an over abundance of certain chemical nutrients eutrophication can occur. Runoff from land and farms is the main cause of excess nutrients into the water. The most common nutrients that are related to algae outbreaks are nitrate nitrogen and phosphate. In addition, a lack of dissolved oxygen can also be an indicator for the process of eutrophication and risk of an algae outbreak. A particular type of algae commonly found in Maryland is known as Prorocentrum minimum. Prorocentrum tends to cause “mahogany tides” causing water to be brown and have an odor. There has been a campaign launched by the Healthy Harbor

Using a model they projected the outcomes of a 10-fold increase in existing oyster biomass. This resulted in a system wide reduction of surface chlorophyll, increased dissolved oxygen in summer-average deep water, and added to summer-submerged biomass by removing nitrogen. The influence on pelagic waters was limited. They recommend this de-nitrification method as a supplement to nutrient load reduction. (Cerco CF, Noel MR. 2007.)

The limiting nutrient in a water source is what controls algal growth, no mater how much other nutrients is present, without that nutrient there will be no growth. In this regard it is imperative to know what the limiting resource is in a drinking water system in order to maintain the health of the system. Since phosphorous is naturally found in small quantities in water, if too much phosphorous is present then algal growth will increase. Having such high levels of algal growth can dramatically affect the lake’s health, and can effect how a municipal government must treat its water. The

To design and carry out a certain experiment, one should follow some crucial steps. These steps holistically make up a systematic process called the scientific method (Penn State Science, 2008). The scientific method involves the recognition of a problem, compilation of background research, formulation of a hypothesis, design and conduction of an experiment, interpretation of a conclusion, and discussion of future implications of the investigation (Hess, 2011). Overall, this is a fundamental outline of how the experiment ought to be executed.

To help improve the experimental design of this and Wheatley et al.’s (2011) study for the future, multiple solutions can

Nitrate levels that stimulate prolific weed growth should be avoided. Increasing nitrate levels signals organic pollution, and measures should be taken to reduce this input. However, high nitrate levels can be a sign that nitrification (conversion of ammonia to nitrate by certain bacteria) is occurring which is helping to reduce the levels of toxic ammonia. Nitrate is known to accumulate to high levels in recirculation systems as an end-product of nitrification. Anoxia is a lack of oxygen in a waterway caused by excessive nutrient growth (when the ‘algal blooms’ begin to decompose it removes oxygen from the water often resulting in the deaths of aquatic animals and a strong odour and a colour change of the

This is a brief description of the hypothesis and the goals of the experiment. It should indicate what questions you, as a researcher, will be seeking to answer.

The lab objective was to determine the correct blood urea nitrogen (BUN) concentrations. A spectrophotometer was used to measure the serum samples. This test is designed to measure the amount of nitrogen the blood that comes from the urea – a byproduct made when protein is broken down. It is a test that is used to determine how well a patient’s kidneys are working. BUN levels rise when the kidneys are unable to properly remove the urea from the blood. Liver problems can cause a lower BUN level while heart problems and poor dietary habits can cause higher Bun levels. The degree of protein catabolism influences the serum concentration of urea nitrogen, not renal function or urine

In the nitration experiment, a 5 mL conical vial was obtained, and a rice stir bar along with 0.5 mL of concentrated nitric acid was added to it. Slowly 0.5 mL of concentrated sulfuric acid was added to the nitric acid. The conical vial was placed in the appropriate hole in the aluminum heating block and the heat was turned to 50 degrees Celsius. The conical vial was attached to the micro-jacket condenser. The water hose was not attached to it.

Description Nitric acid is commonly used in the chemistry laboratory. However, it has various uses in other industries as well such as in fertilizer production, and in the explosives industry. In this lesson, we will discuss nitric acid and its different uses. !!! Structure and Formula of Nitric Acid Nitric acid is a substance that we encounter more often than we think.

The Possible causes of Algae Population Decreasing are Air pollution, Chemical contaminants, Population increase, Stormwater run-off. The main Cause of air pollution is cars, trucks, gas powered lawn tools, power plants, Etc… Air pollution not only hurts us but it hurts are ground and water. The main harm of air pollution is that all these sources are letting out nitrogen into the air, When it is in the air it can get into waterways or straight into Chesapeake bay.

Freshwater shrimp feed on the algae that grows as a result. The streams are kept clean by the freshwater shrimp eating the dead matter . Organisms such as fish would then die as sunlight cannot reach the other water plants, and the oxygen content of the water subsequently decreases too. Oxygen then decreases more because of decomposition by bacteria breaks down dead plant matter. According to Art Eutrophication is “The process by which a body of water acquires a high concentration of nutrients, especially phosphates and nitrates. These typically promote excessive growth of algae. As the algae die and decompose, high levels of organic matter and the decomposing organisms deplete the water of available oxygen, causing the death of other organisms, such as fish. Eutrophication is a natural, slow-aging process for a water body, but human activity greatly speeds up the process.” This has a direct impact on fish, their main predators who cannot not survive in low levels of oxygen, leading to an increase in freshwater shrimp